| 摘要 |
PURPOSE:To obtain a ferroelectric liquid crystal element having excellent low- temperature working characteristics, quick response, etc., by applying an orientation-controlling layer to a pair of substrates each furnished with a potential-imposing means and interposing a ferroelectric liquid crystal layer containing a specific liquid crystal ester compound between the substrates. CONSTITUTION:A ferroelectric liquid crystal layer 1 containing one or more kinds of liquid crystal ester compounds of formula I (R1 is preferably methyl, etc.; R2 is preferably ethyl, etc.; group of formula II is 1,4-phenylene group, etc.; n is 1-6) is inserted between a pair of glass substrates 2 having transparent electrode 3 (e.g. composed of a thin film of In2O3) and an orientation controlling layer 4 (e.g. produced by rubbing a thin polyimide layer with a gauze). The thickness of the liquid crystal layer is adjusted with a spacer 5. The transparent electrode 3 is provided with a lead wire 6 to enable the application of voltage with a power source 7. The glass substrates 2 are sandwiched with a pair of cross Nicol polarization plates 8 and a light source 9 is disposed at a side of the Nicol plate to obtain the objective ferroelectric liquid crystal element.
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